Adjunctive Wound Healing Flashcards Preview

PHTH 550: Orthopaedic Rehabilitation > Adjunctive Wound Healing > Flashcards

Flashcards in Adjunctive Wound Healing Deck (19):
1

How is skin polarized? Is the exterior of skin more positive or negative?

Sodium flowing from exterior into the epithelium makes the exterior of the skin more negatively charged

2

following a skin lesion:
a) positively charged ions flow toward the wound
b) negatively charged ions flow toward the wound

a, positively charged ions flow towards wound

3

the process of attracting charged cells towards an electrical field is _______

galvanotaxis

4

which cells migrate to a negative charge?

neutrophils if tissue is inflamed
fibroblasts

5

which cells migrate to a positive charge?

neutrophil
macrophage
epidermal cells

6

what are some proposed effects?

- reduction/prevention of edema
- antibacterial
- stimulation of collagen, ATP, wound strength, capillary density, and collagen organization

7

when should electrotherapy be used?

crappy healing, chronic wounds

8

what are the two types of currents used for wound healing?

high voltage pulsed current (HVPC)
low intensity direct current (LIDC)

9

when would you want to use a cathode?
how about an anode?

cathode - for granulation, epithelialization, or if the wound is infected

anode - for debridement, to push silver in for cleaning

alternate them when wound contraction is desired

10

what two things need to be removed from the area before treatment?

petroleum products
metal residue

11

what is one special contraindication for this treatment?

osteomyelitis

12

when should the frequency be set to 100-120V instead of 30Hz or 60 Hz?

proliferative phase

13

what does low frequency ultrasound use instead of having contact with the wound? Is there evidence for this?

mist - evidence is limited but promising

14

what can ultraviolet light do?

- stimulate granulation and epithelial growth
- increase epithelial cell turnover and remove slough
- destroy bacteria

15

which kind of UV light is used in wound healing? How is the evidence?

UVC - not great evidence but not horrible for light infections but not for deep ones

16

when would you avoid UV?

- dermatological conditions like eczema
- photosensitivity
- fever
- skin cancer
- HIV
- erythema
- TB

17

which type of low level laser has the most evidence to back it up?

helium-neon

18

what would the biological effects of laser therapy be from? would you use this on an infected wound?

effect from direct radiation, do not use on infected wound

19

what kind of wounds might benefit from negative pressure therapy?

acute/post surgical wounds